bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch b/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch
new file mode 100644
index 0000000000..50eccbfbd9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0255-snd_bcm2835-disable-HDMI-audio-when-vc4-is-used-3640.patch
@@ -0,0 +1,33 @@
+From d9d1244f8aa9d776073e2a12e0cb9542d89bd3cb Mon Sep 17 00:00:00 2001
+From: Hristo Venev <hristo@venev.name>
+Date: Fri, 5 Jun 2020 09:22:49 +0000
+Subject: [PATCH] snd_bcm2835: disable HDMI audio when vc4 is used
+ (#3640)
+
+Things don't work too well when both the vc4 driver and the firmware
+driver are trying to control the same audio output:
+
+[  763.569406] bcm2835_audio bcm2835_audio: vchi message timeout, msg=5
+
+Hence, when the vc4 HDMI driver is used, let it control audio. This is done
+by introducing a new device tree property to the audio node, and
+extending the vc4-kms-v3d overlays to set it appropriately.
+
+Signed-off-by: Hristo Venev <hristo@venev.name>
+---
+ drivers/staging/vc04_services/bcm2835-audio/bcm2835.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
++++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+@@ -381,7 +381,9 @@ static int snd_bcm2835_alsa_probe(struct
+ 	}
+ 
+ 	if (!enable_compat_alsa) {
+-		set_hdmi_enables(dev);
++		if (!of_property_read_bool(dev->of_node, "brcm,disable-hdmi"))
++			set_hdmi_enables(dev);
++
+ 		// In this mode, always enable analog output
+ 		enable_headphones = true;
+ 	} else {